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All Journal Seminar Nasional Teknik Kimia Kejuangan Journal of Engineering and Technological Sciences Techno LPPM Journal of Geoscience, Engineering, Environment, and Technology JOURNAL OF EARTH ENERGY ENGINEERING Journal of Petroleum and Geothermal Technology Petro : Jurnal Ilmiah Teknik Perminyakan Journal of Earth Energy Science, Engineering, and Technology Scientific Contributions Oil and Gas
Boni Swadesi
Department Of Petroleum Engineering, Faculty Of Mineral Technology, Universitas Pembangunan Nasional “Veteran” Yogyakarta, Indonesia
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Materials Science & Nanotechnology Physics

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Journal : Journal of Earth Energy Science, Engineering, and Technology

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Evaluation of the Viscosity of Terrafloc Polymer and Xanthan Gum Polymer Amri, Sulthoni; Setiati, Rini; Fathaddin, Muhammad Taufiq; Rakhmanto, Priagung; Swadesi, Boni; Ratnaningsih, Dyah Rini
Journal of Earth Energy Science, Engineering, and Technology Vol. 7 No. 1 (2024): JEESET VOL. 7 NO. 1 2024
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jeeset.v7i1.17309

Abstract

Polymer injection is one of the EOR methods using chemical which is injected into the reservoir to increase oil recovery. The polymer functions to maintain the flow of fluids, especially water, so that it does not boil ahead of oil towards production wells. This is due to the ability of the polymer to increase the viscosity of the fluid in the reservoir. The polymers commonly used in the petroleum world are synthetic polymers and natural polymers which are often referred to as biopolymers. The type of biopolymer in this article is Xanthan Gum while the synthetic polymer used is Terrafloc. The characteristics of these two polymers are compared so that the performance that will be obtained in an effort to increase the recovery of petroleum can be estimated. From the results of the viscosity measurement, it turned out that the Xanthan Gum polymer had a much greater viscosity value than the Terrafloc polymer. Thus, the use of Xanthan Gum and Terrafloc polymers can be adjusted to the needs related to the type of crude oil in the reservoir to be injected so that the results of obtaining petroleum can be optimal.
Salinity Effects on Anionic AEC Surfactant with Crude Oil: IFT, Phase Behavior, Solubilization, Microemulsion Viscosity Swadesi, Boni; Azmia, Fadhlan Barrul; Pratiknyo, Avianto Kabul; Kurniawan, Aditya; Suwardi
Journal of Earth Energy Science, Engineering, and Technology Vol. 8 No. 3 (2025): JEESET VOL. 8 NO. 3 2025
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/tqms0g23

Abstract

The investigates the influence of NaCl salinity (0–32,000 ppm) on the performance of Alkyl Ethoxy Carboxylate (AEC) anionic surfactants for Enhanced Oil Recovery (EOR), using light crude oil as a model. Salinity fundamentally affects the system's Interfacial Tension (IFT), phase behavior, solubilization, and microemulsion rheology. The objectives were to map these effects and determine the optimal operational salinity and surfactant working concentration. The working concentration of 1.75% w/w was established above the Critical Micelle Concentration (CMC), determined from the breakpoint of the IFT curve versus log AEC concentration. IFT was precisely measured using a spinning-drop tensiometer. Phase behavior was characterized via a salinity scan to map the Winsor I–III–II transition, and the solubilization ratio was calculated from the equilibrium volume of the middle phase. Microemulsion viscosity was measured using a Brookfield DV3T viscometer with a stepwise shear protocol. The key results showed that an optimum salinity window produced ultra-low IFT, led to the formation of Winsor III microemulsions with a balanced oil/water solubilization ratio, and caused a viscosity peak that coincided with the Hydrophilic-Lipophilic Difference (HLD) ≈ 0 conditions. The microemulsions exhibited characteristic shear-thinning behavior across the tested shear rates. Salinity systematically controls the key physicochemical properties of the AEC–crude oil system. The findings provide: selecting the working concentration based on the CMC test and choosing the salinity at HLD ≈ 0 maximize residual oil mobilization while minimizing phase instability risks. Operational implications include precise brine selection, surfactant dosage control, and adaptive staged slug injection strategies.
Co-Authors Aditya Kurniawan Ahmad Muraji Suranto Alfatah, Faritsi Luqman Aliefan, Tubagus Adam Amir, Zulhemi Amri, Sulthoni Aris Widodo Ayu Regita Pramesti Azmia, Fadhlan Barrul Buntoro, Aris Dedy Kristanto Deni Kurniawan Dyah Rini Ratnaningsih Fachri Muhammad Winant Fahrezi Oktaviandi Ferdinandus, Evan Raymond Fransiscus Asisi Lugas Ariobimo H.P. Septoratno Siregar H.P. Septoratno Siregar, H.P. Septoratno Hartoyo, Puji Indah Widiyaningsih Indah Widiyaningsih Indah Widiyaningsih Indah Widyaningsih Kololu, Micky Kristanto, Dedi Kristanto, Dedy KRT Nur Suhascaryo Leksono Mucharam Leksono Mucharam Lufis Alfian Alannafi lukmana, allen haryanto Matrida Jani Muhammad Taufiq Fathaddin, Muhammad Taufiq Nur Suhascaryo Nur Suhascaryo Nurcholis, Muhammad Pratiknyo, Avianto Kabul Putra, Teddy Eka Putradianto, Ristiyan Ragil Rakhmanto, Priagung Ratna Widyaningsih Ratna Widyaningsih Ratnaningsih, Dyah Rini Ridha, Syahrir Rini Setiati Roiduz Zumar Sinosa Husenido Sri Murni Sri Wahyu Murni Sri Wahyu Murni Suranto Suranto Suranto Suranto Suwardi Taufan Marhaendrajana, Taufan Wicaksono, Dimas Suryo Winant, Fachri Muhammad Zayd, Ahmad